Yarn, cord, and the like



April 12, 1932. O 1,854,120

YARN, CORD, AND THE LIKE Filed March 30, 1928 Patented Apr. 12, 1932 UITED STATES Par NT orrii cs DUDLEY A. DOM, or WYOMING, OHIO, ASSIGNOR TO THEPHILI'P CAREY MANUFACTUR- ING- COMPANY, A CORPORATION or OHIO YARN, COB-D, AND THE LIKE Application filed March 30, 1928. Serial No. 265,85t.

My invention relates to yarns, cords, threads, etc. for various uses. My invention is particularly adapted to the manufacture of yarns for weaving into various fabrics such as brake band linings, etc.

My invention consists in forming a yarn, thread or cord from paper, such'as asbestos paper, by cutting the paper into narrow widths and wrapping it around a central core which serves to give the necessary strength to the cord, yarn, etc. The core may be of any suitable flexible material such as wire or linen or similar threads, or a plurality of wire strands, or a combination of wire and suitable threads.

In the drawing I have shown an enlarged view of my improved cord, yarn, etc. with a portion of the core uncovered.

In this drawing, A is a central core preferably consisting of a plurality of fine wires twisted about each other; B is a linen or other suitable thread whichis wrapped around or twisted with the core A. This thread B serves to give not only additional tensile strength to my yarn when used with a wire core but by reason of being wrapped around or twisted with the wire core A it affords a surface to which the paper or fabric, or combined paper and fabric C will be locked by friction against longitudinal movement with relation to the core A. Around the core which may consist as shown of the multiple strands of twisted wire A and the thread B, or either alone, I wrap any suitable material cut into the form of long narrow tape C. The tape material depends upon the nature of the product that is to be woven or manufactured using my improved yarn or cord. For some purposes I use a cotton fabric coated with asbestos pulp. For other purposes I would use an asbestos paper or a rag paper or similar felted material either plain. or saturated with a waterproof or adhesive saturant. For example, if the product to be manufactured using my threads is a brake band lining, I would use for the wrapping C a tape containing asbestos which is wrapped tightly about the core and is held or anchored against longitudinal movement with respect to the core by reason of the twisted character of the core'. During theiwrapping of the tape or just prior thereto I prefer to dampen" or slightly moisten same. For some purposes the linen thrcadB'could-be dispensed with and the friction created by the'twi sted wire strands A would give sufiicient friction to anchor-the wrapping tape C, but I prefer in the manufacture of cords and yarns for brake band lining to use in addition to the plurality of strands A the linen thread B wrapped around the core.

WVhile in my improved cord or yarn the major element or material is the wrapping C, which may be of any suitable material, I have herein shown an asbestos tape which preferably consists of an asbestos felted sheet like paper composed of a loosely woven cotton fabric D having deposited upon it asbestos pulp so that the tape consists of this loosely woven cotton fabric embedded in asbestos paper pulp. This is made in sheet form and out up into relatively narrow tapes, the width of the tape dependent upon the size or diameter of yarn that is to be manufactured.

I have found that by using the twisted core and wrapping around it the tape sheet material C that I am enabled to produce a thread or cord of any desired textile strength and of any desired diameter using materials that are comparatively weak in tensile strength for the major portion of the cord or yarn but which materials have other qualities such as the qualities possessed by asbestos without the necessary steps heretofore used in manufacturing asbestos cords. For some purposes the wire core of my cord or yarn could be dispensed with and in place of it one or more strands oflinen or other similar thread could be used.

1. A cord, yarn or similar material composed of a core consisting of a plurality of wire strands twisted together, a flexible strand wound about said core and a ply of reinforced paper sheet material having a reinforcement embedded therein wrapped about the said core and strand.

2. A yarn comprising a core and a cover for the core said cover formed by a single ply of asbestos paper, containing a longitudinal reinforcement embedded therein, Wrapped around said core.

3. A cord, yarn or similar material composed of a core consisting of a plurality of Wire strands twisted together, a flexible strand Wound about said core and an asbestos felted sheet material having a Woven fabric embedded therein Wrapped about the said core and strand.

4. A cord, yarn or similar material composed of a core and a cover therefor consisting of a single-ply of paper having a longitudinal reinforcement embedded therein wrapped around said core.

5. A yarn, cord or similar material C0mposed of a core consisting of a plurality of strands twisted together and a- Woven textile material embedded in a single ply of paper Wrapped around said core.

In testimony whereof, I have signed my name to this specification.

' DUDLEY A. DOM. 

